body{
    background-color: #f6f6f6;
}
.all_nav{
    line-height: 50px;
    background-color: #fff;
}
.nav_show{
    li{ 
        margin: 0 50px 0 0;
        a{
            display: block;
            width: 100%;
            height: 50px;
            line-height: 50px;
            padding: 0;
            transition: all .3s;            
        }
    }
    .nav_choose{
        position: relative !important;
        color: $choose-color;
        &:after{
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            display: block;
            width: 100%;
            height: 3px;
            border-radius: 3px;
            margin-left: -50%;
            background-color: $choose-color;
        }
    }    
}
.use_info{
    text-align: right;
    a{
        padding: 0 auto !important;
        height: 69px;
        line-height: 40px !important;
    }
    .user_img {
        position: relative;
        top: -2px;
        left: -10px;
        display: inline-block;
        width: 34px;
        height: 34px;
        border-radius: 50%;
    }
    .user_name {
        display: inline;
    }
    #dropdown_menu a{
        height: 40px;
        line-height: 40px;
    }
}
a{
    &:hover{
        text-decoration: none;
        color: inherit;
    }
}

.use_info{
    .dropdown-menu{
        left: 56px !important;
    }
}